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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1762951Generated: October 26, 2026

Hydrochloric Acid → 4-Allylaminoacetyl-7-hydroxyindole-2-carboxylic acid ethyl ester hydrochloride

https://huagongshe.com/reaction/1762951

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAllylamineHCID 7853—
ReactantEthyl 4-(chloroacetyl)-7-hydroxy-1H-indole-2-carboxylateHCID 13243454—
SolventDimethyl SulfoxideHCID 679—
Product4-Allylaminoacetyl-7-hydroxyindole-2-carboxylic acid ethyl ester hydrochlorideHCID 70381452—

Reaction Steps

2.8 g of 4-chloroacetyl-7-hydroxyindole-2-carboxylic acid ethyl ester is combined with 1.5 ml of allylamine and 15 ml of absolute dimethyl sulfoxide and stirred at room temperature for one hour. Then 150 ml of 2N hydrochloric acid is added to the reaction mixture, the immediately formed precipitate is vacuum-filtered, and the filtrate is allowed to stand and thus yields, in crystalline form, 1.5 g of 4-allylaminoacetyl-7-hydroxyindole-2-carboxylic acid ethyl ester hydrochloride, mp 264°-265° C. (decomposition).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04835175
Source datasetuspto-grants-1989_05
ORD IDord-444fef2c936349cd92750662735f920a
Source noteuspto-grants-1989_05